Sometimes I become lucid while dreaming but then it's not vivid at all, and I wake up after 30 seconds or so. I just feel myself going from a dream to my body, and at that moment it's very easy to hold the position in which I wake up.
So my question is: what do I do to become lucid again? Do I need to keep still and fall asleep again, or do I perform some sort of excerise. Or is there nothing you can do to achieve lucidity more easily at that point?